1350531 has 48 divisors (see below), whose sum is σ = 2568384. Its totient is φ = 663552.

The previous prime is 1350521. The next prime is 1350533.

It is a happy number.

1350531 is a `hidden beast` number, since 135 + 0 + 531 = 666.

1350531 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1350531 - 2⁶ = 1350467 is a prime.

It is a super-2 number, since 2×1350531² = 3647867963922, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1350533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13875 + ... + 13971.

It is an arithmetic number, because the mean of its divisors is an integer number (53508).

2^1350531 is an apocalyptic number.

1350531 is a deficient number, since it is larger than the sum of its proper divisors (1217853).

1350531 is a wasteful number, since it uses less digits than its factorization.

1350531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 1350531 is about 1162.1234874143. The cubic root of 1350531 is about 110.5354335837.

It can be divided in two parts, 1350 and 531, that added together give a palindrome (1881).

The spelling of 1350531 in words is "one million, three hundred fifty thousand, five hundred thirty-one".